Publikation:

Domain wall motion in nanowires

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Wieser_0-374515.pdf
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Datum

2005

Autor:innen

Wieser, Robert
Usadel, Klaus-Dieter

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URI (zitierfähiger Link)
http://nbn-resolving.de/urn:nbn:de:bsz:352-0-374515
DOI (zitierfähiger Link)
https://doi.org/10.1080/01411590412331316663
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Open Access-Veröffentlichung
Open Access Green

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Physik: Publikationen
Core Facility der Universität Konstanz

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Published

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Phase Transitions. 2005, 78(1-3), pp. 115-120. ISSN 0141-1594. eISSN 1029-0338. Available under: doi: 10.1080/01411590412331316663

Zusammenfassung

We investigated the motion of domain walls in ferromagnetic cylindrical nanowires by solving the Landau–Lifshitz–Gilbert equation numerically for a classical spin model in which energy contributions from exchange, crystalline anisotropy, dipole–dipole interactions, and a driving magnetic field are considered. Depending on the diameter, either transverse domain walls or vortex walls are found. A transverse domain wall is observed for diameters smaller than the exchange length of the given system. In this case, the system effectively behaves one dimensionally and the domain wall velocity agrees with the result of Slonczewski for one-dimensional walls. For larger diameters, a crossover to a vortex wall sets in which enhances the domain wall velocity drastically. For a vortex wall the domain wall velocity is described by the Walker formula.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
530 Physik

Schlagwörter

Domain wall motion; Classical spin model; LLG; Langevin dynamics

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ISO 690WIESER, Robert, Ulrich NOWAK, Klaus-Dieter USADEL, 2005. Domain wall motion in nanowires. In: Phase Transitions. 2005, 78(1-3), pp. 115-120. ISSN 0141-1594. eISSN 1029-0338. Available under: doi: 10.1080/01411590412331316663
BibTex
@article{Wieser2005-01Domai-36207,
  year={2005},
  doi={10.1080/01411590412331316663},
  title={Domain wall motion in nanowires},
  number={1-3},
  volume={78},
  issn={0141-1594},
  journal={Phase Transitions},
  pages={115--120},
  author={Wieser, Robert and Nowak, Ulrich and Usadel, Klaus-Dieter}
}
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